{
  "name": "Yamanami Highway",
  "slug": "yamanami-highway",
  "url": "https://www.bestdrivingroads.com/roads/yamanami-highway/",
  "summary": "Kyushu's most famous drive, Beppu to Aso over the Kuju mountains and Makinoto Pass",
  "roadNumbers": [
    "11"
  ],
  "location": {
    "country": "Japan",
    "region": "Oita / Kumamoto",
    "start": {
      "name": "Beppu, Oita",
      "lat": 33.30999,
      "lon": 131.46421
    },
    "end": {
      "name": "Aso (Ichinomiya), Kumamoto",
      "lat": 32.937828,
      "lon": 131.117482
    }
  },
  "measurements": {
    "lengthMiles": 54.8,
    "lengthKm": 88.2,
    "driveMinutes": 105,
    "corners": 120,
    "hairpins": 9,
    "maxGradientPercent": 8,
    "summitMetres": 1330.5,
    "elevationConfidence": "measured",
    "difficulty": "moderate",
    "tightnessOutOf10": 4
  },
  "timing": {
    "bestSeasons": [
      "spring",
      "summer",
      "autumn"
    ]
  },
  "conditions": {},
  "hazards": [
    "Winter frost and ice",
    "Volcanic haze",
    "Animals near verges"
  ],
  "scenery": [
    "mountain",
    "moorland",
    "valley"
  ],
  "pointsOfInterest": [
    "Bonze Hell"
  ],
  "geometry": {
    "pointCount": 881
  },
  "attribution": {
    "source": "Routes - bestdrivingroads.com",
    "citation": "Cite with a link to the road page. Stats are measured from the mapped line, not copied from other lists; where elevationConfidence is \"approximate\" the 30 m DEM cannot resolve that line and the elevation figures are indicative.",
    "roadGeometry": "(c) OpenStreetMap contributors, ODbL",
    "terms": "Facts are free to cite with attribution; bulk reproduction of the catalogue requires permission (simon@keane.studio)."
  },
  "updated": "2026-07-25"
}